发明名称 |
IMAGE PROCESSING APPARATUS AND METHOD OF PROCESSING IMAGE |
摘要 |
An image processing apparatus calculates a smoothed value obtained by smoothing signal levels of a plurality of pixels including a processing target pixel in a local area of an input image and a feature amount representing an edge degree of the processing target pixel using a pre-noise reduction image obtained by reducing an impulse noise of the input image. The image processing apparatus weighted-adds a signal level of the processing target pixel and the smoothed value at a ratio corresponding to the feature amount and outputs the weighted-addition result as a signal level after noise reduction processing. |
申请公布号 |
US2010066868(A1) |
申请公布日期 |
2010.03.18 |
申请号 |
US20090558283 |
申请日期 |
2009.09.11 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SHOHARA MAKOTO |
分类号 |
H04N5/217;G06K9/48;G06T5/00;G06T5/20;H04N1/409;H04N5/232;H04N101/00 |
主分类号 |
H04N5/217 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|